gon·if /ˈgɑnəf/
  gon·iff n.  A pickpocket or thief. [Also spelled ganef, gonif, and gonoph.]  [Eng. Slang]
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  Gon·oph n.  A pickpocket or thief. [Also spelled ganef, gonif, and goniff.]  [Eng. Slang]
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  gonif
       n : (Yiddish) a thief or dishonest person or scoundrel (often
           used as a general term of abuse) [syn: goniff, ganef,
            ganof]